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Dasyuromorphia

The order Dasyuromorphia comprises most of the Australian carnivorous marsupials, including quolls, dunnarts, the numbat, the Tasmanian devil, and the thylacine. In Australia, the exceptions include the omnivorous bandicoots and the marsupial mol ...

Diplogrammus

There are currently 8 recognized species in this genus: Diplogrammus xenicus D. S. Jordan & W. F. Thompson, 1914 Japanese fold dragonet Diplogrammus randalli R. Fricke, 1983 Randalls fold dragonet Diplogrammus pygmaeus R. Fricke, 1981 Pygmy drago ...

Tachyglossidae

Echidnas, sometimes known as spiny anteaters, belong to the family Tachyglossidae in the monotreme order of egg-laying mammals. The four extant species of Echidnas and the platypus are the only living mammals that lay eggs and the only surviving ...

Entomacrodus

There are currently 27 recognized species in this genus: Entomacrodus thalassinus D. S. Jordan & Seale, 1906 Sea blenny Entomacrodus chapmani V. G. Springer, 1967 Chapmans blenny Entomacrodus vermiculatus Valenciennes, 1836 Vermiculated blenny En ...

Epiplatys

Epiplatys is a genus of African rivuline in the family Nothobranchiidae endemic to Africa as the name indicates. Several of these species are popular aquarium fish.

Antennariidae

Frogfishes are any member of the anglerfish family Antennariidae, of the order Lophiiformes. Antennariids are known as anglerfishes in Australia, where the term "frogfish" refers to members of the unrelated family Batrachoididae. Frogfishes are f ...

Ginglymostomatidae

The Ginglymostomatidae are a cosmopolitan family of carpet sharks, containing two monotypic genera of nurse sharks. Common in shallow, tropical and subtropical waters, these sharks are sluggish and docile bottom-dwellers. Nurse sharks typically a ...

Glossamia

Glossamia is a genus of freshwater fish in the family Apogonidae. The majority of the species are endemic to New Guinea, but G. aprion is also found in Australia.

Halaelurus

Halaelurus maculosus W. T. White, Last & Stevens, 2007 Indonesian speckled catshark Halaelurus lineatus Bass, DAubrey & Kistnasamy, 1975 Lined catshark Halaelurus sellus W. T. White, Last & Stevens, 2007 Rusty catshark Halaelurus quagga Alcock, 1 ...

Sphyrnidae

The hammerhead sharks are a group of sharks that form the family Sphyrnidae, so named for the unusual and distinctive structure of their heads, which are flattened and laterally extended into a "hammer" shape called a cephalofoil. Most hammerhead ...

Brachionichthyidae

Handfish are any anglerfish within the family Brachionichthyidae, a group which comprises five genera and 14 extant species. These benthic marine fish are unusual in the way they propel themselves by walking on the sea floor rather than swimming.

Hemigrammus

Hemigrammus is a genus of freshwater fish in the family Characidae native to South America and commonly seen in the aquarium trade. These are medium-small tetras where the largest species reach up to around 11 cm.

Hemiscylliidae

The Hemiscylliidae are a family of sharks in the order Orectolobiformes, commonly known as longtail carpet sharks and sometimes as bamboo sharks. They are found in shallow waters of the tropical Indo-Pacific. They are relatively small sharks, wit ...

Heptapteridae

The Heptapteridae, or three-barbeled catfishes, are a family of catfish that originate from the Americas. Most species are restricted to South America, but Imparfinis lineatus, Nemuroglanis panamensis and Pimelodella chagresi are native to Panama ...

Histiophryne

Histiophryne is a genus of frogfishes found in waters ranging from Taiwan to South Australia. There are currently three known species. These fishes are easily distinguished from other anglerfishes as having a reduced luring appendage, a highly ev ...

Hoplias

There are currently 13 recognized species in this genus: Hoplias misionera Rosso, Mabragaña, Gonzalez-Castro, Delpiani, Avigliano, Schenone & Diaz de Astarloa, 2016 Hoplias microlepis Gunther, 1864 Hoplias brasiliensis Spix & Agassiz, 1829 Hoplia ...

Hoplosternum

Hoplosternum is a small genus of freshwater catfish in the Callichthyinae subfamily of the armored catfish family. A fossil catfish has been identified as Hoplosternum sp. from the middle Miocene in the La Venta formation, Magdalena River basin, ...

Hydrolagus

The 23 recognized species in this genus are: Hydrolagus erithacus Walovich, Ebert & Kemper, 2017 Robins ghostshark Hydrolagus mitsukurii D. S. Jordan & Snyder, 1904 Mitsukuris chimaera Hydrolagus bemisi Didier, 2002 pale ghostshark Hydrolagus col ...

Hypomesus

There are currently five recognized species in this genus: Hypomesus transpacificus McAllister, 1963 Delta smelt Hypomesus japonicus Brevoort, 1856 Hypomesus olidus Pallas, 1814 Pond smelt Hypomesus pretiosus Girard, 1854 Surf smelt Hypomesus nip ...

Hyporhamphus

Hyporhamphus is a genus of halfbeaks. The species in this genus are distributed throughout the warmer seas of the world, most species being Indo-Pacific and there are some freshwater species.

Hypseleotris

Hypseleotris is a genus of fishes in the family Eleotridae. Most are from fresh water in Australia and New Guinea, but species in fresh and brackish water are found around islands in the western Indian Ocean, southern and eastern Africa, southern ...

Ictaluridae

The Ictaluridae, sometimes called ictalurids or common catfishes, are a family of catfish native to North America, where they are important food fish and sometimes as a sport fish. The family includes about 51 species, some commonly known as bull ...

Iniistius

The 21 currently recognized species in this genus are: Iniistius pentadactylus Linnaeus, 1758 fivefinger wrasse Iniistius bimaculatus Ruppell, 1829 two-spot razorfish Iniistius spilonotus Bleeker, 1857 Iniistius aneitensis Gunther, 1862 yellowblo ...

Isistius

Isistius is a genus of dogfish sharks in the family Dalatiidae. They are commonly known as cookiecutter sharks. Members of the genus are known for their unusual behaviour and dentition.

Kogiidae

Kogiidae is a family comprising at least two extant species of Cetacea, the pygmy and dwarf sperm whales. As their common names suggest, they somewhat resemble sperm whales, with squared heads and small lower jaws, but are much smaller in size, w ...

Lamiopsis

Lamiopsis is a genus of shark in the family Carcharhinidae found in Indian and Pacific Ocean. This genus was previously considered to be monotypic. However, a recent taxonomic study revealed that the western central Pacific populations were a sep ...

Myctophidae

Lanternfishes are small mesopelagic fish of the large family Myctophidae. One of two families in the order Myctophiformes, the Myctophidae are represented by 246 species in 33 genera, and are found in oceans worldwide. They are aptly named after ...

Lepophidium

There are currently 21 recognized species in this genus: Lepophidium negropinna Hildebrand & F. O. Barton, 1949 Specklefin cusk-eel Lepophidium crossotum C. R. Robins, R. H. Robins & M. E. Brown, 2012 Lepophidium stigmatistium C. H. Gilbert, 1890 ...

Zaglossus

The long-beaked echidnas make up one of the two extant genera of echidnas, spiny monotremes that live in New Guinea. There are three living species and two extinct species in this genus. The extinct species were present in Australia. Echidnas are ...

Machairodontinae

Machairodontinae is an extinct subfamily of carnivoran mammals of the family Felidae. They were found in Asia, Africa, North America, South America, and Europe from the Miocene to Pleistocene living from about 16 million until about 11.000 years ...

Malacoctenus

There are currently 23 recognized species in this genus: Malacoctenus triangulatus V. G. Springer, 1959 Saddled blenny Malacoctenus boehlkei V. G. Springer, 1959 Diamond blenny Malacoctenus zonogaster Heller & Snodgrass, 1903 Belted blenny Malaco ...

Trichechidae

Manatees are large, fully aquatic, mostly herbivorous marine mammals sometimes known as sea cows. There are three accepted living species of Trichechidae, representing three of the four living species in the order Sirenia: the Amazonian manatee, ...

Monocentridae

Pinecone fishes are small and unusual beryciform marine fish of the family Monocentridae. The family contains just four species in two genera, one of which is monotypic. Their distribution is limited to tropical and subtropical waters of the Indo ...

Myloplus

Myloplus is a genus of freshwater fish in the family Serrasalmidae found in tropical and subtropical South America, where they inhabit rivers and streams. They are primarily herbivores, but also take some animal matter. Depending on the exact spe ...

Nandopsis

Nandopsis is a small genus of cichlid fishes found in lakes, streams and rivers in Cuba and Hispaniola. If disregarding Trinidad and Tobago, Nandopsis are the only cichlids native to the Antilles.

Narcinidae

The numbfishes are a group of electric rays in the family Narcinidae. They are bottom-dwelling cartilaginous fishes with large, rounded pectoral fin discs and long tails. They can produce an electric discharge for defense, from which their scient ...

Notarius (fish)

There are currently 13 recognized species in this genus: Notarius bonillai Miles, 1945 New Granada sea catfish Notarius cookei Acero P & Betancur-R., 2002 Notarius osculus D. S. Jordan & C. H. Gilbert, 1883 Chomba sea catfish Notarius kessleri St ...

Oligoplites

Oligoplites is a genus of carangid leatherjackets native to warmer seas off the Americas, including the East Pacific, West Atlantic, Caribbean Sea and Gulf of Mexico.

Opisthonema

Opisthonema is a genus of herrings, the thread herrings, found in tropical waters of the Western Hemisphere. They get their name from a filamentous nature of the last ray of the dorsal fin. Currently, five species are in this genus.

Otophidium

Otophidium is a genus of cusk-eels, part of the subfamily Ophidiinae in the family Ophidiidae. They are found in the western Atlantic and eastern Pacific.

Oxycheilinus

There are currently 10 recognized species in this genus: Oxycheilinus unifasciatus Streets, 1877 Ringtail maori wrasse Oxycheilinus nigromarginatus J. E. Randall, Westneat & M. F. Gomon, 2003 Black-margin maori wrasse Oxycheilinus digramma Lacepe ...

Plagiotremus

There are currently 11 recognized species in this genus: Plagiotremus rhinorhynchos Bleeker, 1852 Bluestriped fangblenny Plagiotremus azaleus D. S. Jordan & Bollman, 1890 Sabertooth blenny Plagiotremus tapeinosoma Bleeker, 1857 Piano fangblenny P ...

Plectrypops

Plectrypops is a genus of soldierfish containing two extant species, with one species in the Indo-Pacific, and another in the western Atlantic and the Caribbean. They are red and reach a length of approximately 15 cm. Members of this genus are al ...

Pomatoschistus

There are currently 13 recognized species in this genus: Pomatoschistus pictus Malm, 1865 Painted goby Pomatoschistus montenegrensis P. J. Miller & Sanda, 2008 Pomatoschistus minutus Pallas, 1770 Sand goby Pomatoschistus marmoratus A. Risso, 1810 ...

Prognathodes

Prognathodes is a genus of butterflyfish in the family Chaetodontidae. They are found at rocky reefs in tropical oceans around the world and are mainly found deeper than Chaetodon ; often a depths below those possible in normal scuba diving. In t ...

Prototheria

Prototheria is a paraphyletic subclass to which the orders Monotremata, Morganucodonta, Docodonta, Triconodonta and Multituberculata have been assigned, although the validity of the subclass has been questioned. Most of the animals in this group ...

Pterygoplichthys

Pterygoplichthys or commonly known as Janitor fish is a genus of South American armored catfishes. These fish are commonly known as sailfin armoured catfish or sailfin plecs.

Cyprinodontidae

Pupfish are a group of small killifish belonging to ten genera of the family Cyprinodontidae of ray-finned fish. Pupfish are especially noted for being found in extreme and isolated situations. They are primarily found in North America, South Ame ...

Retropinna

Retropinna is a genus in the family Retropinnidae containing one species that is widespread in southeastern Australia, one from Tasmania and one from New Zealand.

Rhinopias

Rhinopias is a genus of scorpionfish native to the Indian and Pacific oceans. Like other scorpionfish, Rhinopias species are camouflaged to blend in with their surroundings. Rhinopias command a high price in the aquarium trade.